Farechart

A fare map for the Tokyo metropolitan area's railway network. Select a station and the map colors every other station by the fare to get there from it.

Supported operators: Tobu, Tokyu, Seibu, Keikyu, Keio, Sotetsu, Tokyo Metro, Toei Subway, Yokohama Municipal Subway, Tsukuba Express, Tama Toshi Monorail, Yurikamome, Rinkai Line

Setup

npm install
npm run dev

App data (station groups, per-operator fare tables, and line shapes) is generated automatically before dev/build via npm run data. It reads the raw ODPT data in data/ and outputs browser-ready data to public/data/.

Data sources

• data/RailwayFares.Challenge2026.json, data/RailwayFares.ODPT.json — fare data, provided by ODPT
• data/railway-lines.json, data/station-groups.json, data/stations.json — line, station, and interchange-group data, from nagix/mini-tokyo-3d
• data/polygons — line shape data for the map, from uedayou/jrslod-geojson-downloader

Tech stack

Svelte 5 + Vite, with MapLibre GL for map rendering.